400912791007 has 2 divisors, whose sum is σ = 400912791008. Its totient is φ = 400912791006.

The previous prime is 400912790947. The next prime is 400912791079. The reversal of 400912791007 is 700197219004.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400912791007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400912791107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200456395503 + 200456395504.

It is an arithmetic number, because the mean of its divisors is an integer number (200456395504).

Almost surely, 2^400912791007 is an apocalyptic number.

400912791007 is a deficient number, since it is larger than the sum of its proper divisors (1).

400912791007 is an equidigital number, since it uses as much as digits as its factorization.

400912791007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 40.

The spelling of 400912791007 in words is "four hundred billion, nine hundred twelve million, seven hundred ninety-one thousand, seven".